The setup_wrappers function only does this setup once; it then sets a static variable to indicate that it's already done, so future calls can return quickly.

setup_ wrappers函数仅进行一次设置；然后，它设置一个静态变量来表明已经完成，从而使未来的调用能够快速返回。

youdao

The setup_wrappers function only does this setup once; it then sets a static variable to indicate that it's already done, so future calls can return quickly.

setup_ wrappers函数仅进行一次设置；然后，它设置一个静态变量来表明已经完成，从而使未来的调用能够快速返回。

youdao